Acceleration

Front

Change in velocity over a given period of time is

Back

acceleration

Front

What may occur if an object is accelerated? (Options: a change of speed, a change of direction, a change of speed and direction, it remains motionless)

Back

It remains motionless

Front

Describes the motion of an object that is slowing down.

Back

deceleration

Front

Carlos glances at the speedometer on his bicycle as he begins to roll downhill. It indicates he is traveling at 12 miles per hour when he initially looks at it and 20 miles per hour, 4 seconds later. His acceleration during this interval was:

Back

2 mph/s

Front

A line curving upwards on a position vs time graph represents

Back

the object is accelerating

Front

A horizontal line on a velocity vs time graph shows...

Back

the object is traveling at a constant speed

Front

On a velocity vs time graph, the steeper the line means

Back

faster the acceleration

Front

A dog runs with an initial speed of 7.5 m/s on a waxed floor and slides to a stop in 15 seconds. What is the acceleration?

Back

-0.5 m/s²

Front

A golf ball accelerates off a tee at 15m/s², changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?

Back

3.3 seconds

Front

A roller coaster accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What is the acceleration?

Back

16 m/s²